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36 Cards in this Set
- Front
- Back
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What are the 7 biogeographical regions?
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1. Nearctic
2. Neotropical 3. Paleartic 4. Oriental 5. Ethiopian/African 6. Australian 7. Antarctica |
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What are the 4 major flyways in North America?
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1. Atlantic Coast
2. Pacific Coast 3. Mississippi River 4. Plains/Rockies |
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What are 2 Major Mammal divisions?
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Marsupials and Placentals
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What is another term for a Marsupial?
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Metatherians
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What is another term for a Placental?
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Eutherians; raised in a placenta
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What is an egg laying mammal referred to as being?
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Prototherian; only 3 species of prototherian.
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Who got to Australia? Marsupials or Placentals?
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Marsupials
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What is special about all marsupials found in Australia?
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They are endemic to Australia only.
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How many years ago did Australia become isolated and when did its Marsupials begin to diverge?
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45 mya and 70 mya
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Why is Australia so dry?
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Ice forms Antarctica pulls moisture out of the air, hence Australia is dry
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What percentage of plants are endemic to Australia? What are 2 examples of endemic plants?
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75%; Eucalyptus and Myrtle Family plants
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How much percentage of Aus.'s flora does the Myrtle family account for?
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10%
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What is the most endemic, deepest and oldest lake in the world?
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Lake Baikal in Eastern Russia
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What makes a river endemic?
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1. Old age
2. Isolation 3. Depth of the river |
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When did the Aborigines make it to Australia?
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18-30,000 years ago
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What’s are the 3 key placental animals the Aborigines brought?
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1.Dingo
2. Rats 3. Bats |
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What is the fisher?
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A weasel like animal that exhibited natural range extension when it traveled from Massachusetts to Eastern CT.
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What is the main reason for invasive species?
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Humans
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What is ballast water?
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Water taken in by ships for weight that is dumped in other waters so species can travel this way.
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True or False: A large percentage of invasive species are successful.
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FALSE, they are usually unsuccessful.g
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Are alien and exotic species different?
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No, they are the same thing.
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True or False: All invasive species are alien species
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TRUE; though not all alien species are invasive.
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What part of the US has the most endemism? What part of the contiguous US has the most endemism?
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Hawaii; Florida
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True or False: Bird species richness generally decreases from poles to equator
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FALSE. Because there is usually more species richness near the equator.
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True or False: Few marsupials remain in the world outside of Australia.
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FALSE. Tons of marsupials everywhere.
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What is another term for prototherians?
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monotremes
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What is theria?
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species that birth live animal; vavaporous.
2 kinds of theria. Marsupial/Metatherian Placental/eutherian |
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What did primates evolve from?
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Small insectivores
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What did humans evolve from?
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Hominids
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What is one possible explanation of increased brain sizes in humans?
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fat-rich foods
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What continent has the greatest number of exotic species?
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North America
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What is the Rule of 10?
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10% of exotic species will become a problem
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What opened the door for invasive species?
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European exploration
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What are the 3 most diverse orders within mammals?
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1. rodents
2. bats 3. insectivores |
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How did placentals get to Australia?
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sweepstakes route
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What is Wallace's Line?
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a narrow straight of water separating the Indonesian islands of Bali and Lombok
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